Which is the hottest month in Hamilton?

The hottest time of year in Hamilton is normally July. Expect maximum daytime temperatures to reach 29°C with low heat and humidity.

Which month has the most rain in Hamilton?

In terms of rainfall, June is usually the wettest month in Hamilton with 45mm on average. There are normally 10 days in June with some rain.

When is it sunniest in Hamilton?

The sunniest time of year in Hamilton is normally July with bright sunshine on average for 81% of daylight hours; that's 13 hours of sunshine per day.

Best time to visit Hamilton

Q: When is the best time to visit Hamilton?

The best time to visit Hamilton is June and August based on the following average weather conditions. Maximum daytime temperature = 22 - 30°C. Daily hours of sunshine = 10 hours or more.

Find the best time to visit Hamilton and plan your perfect trip in 2025/2026. Get holiday inspiration, weather guides, travel advice and find great deals.

Hamilton by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Montana

International Drivers Association: Driving permit plans from £37

Deal

Check out International driving permit plans from only £37
Choose from print + digital & digtial only permits
Valid for up to 3 years & use in over 150 countries

Go to International Drivers Association deal >>

When is the best time to visit Hamilton?

The best time to visit Hamilton is June and August based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]
Daily hours of sunshine = 10 hours or more [remove]

Change the criteria to reflect your weather preferences.

0
Jan
1
Feb
1.5
Mar
2
Apr
4
May
5
Jun
4.5
Jul
5
Aug
4.5
Sep
1.5
Oct
0
Nov
0
Dec

Change criteria

Max Day Temperature (°C)

-1
Jan
3
Feb
8
Mar
14
Apr
19
May
23
Jun
29
Jul
28
Aug
22
Sep
14
Oct
5
Nov
-1
Dec

Hours of Sunshine (daily)

3
Jan
5
Feb
7
Mar
8
Apr
9
May
10
Jun
13
Jul
11
Aug
9
Sep
7
Oct
3
Nov
3
Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Montana (Hamilton) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C / mm) | Imperial (°F / inches)